Carta-patente expirada
#21.1
Patente extinta em 25/08/2008
08/26/2008
RPI 1964
Application data
Number
PI8707863Type
Filing
Publication
PCT
US1987002232 The letters patent expired on 08/26/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.
Talk to a specialistLatest action published by the INPI: 08/26/2008. We update with every new RPI gazette, published weekly.
Applicants
Donaldson Company, Inc
US
Inventors
D. E. (pessoa física)
US
S. G. (pessoa física)
US
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#21.1
Patente extinta em 25/08/2008
08/26/2008
RPI 1964
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